5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

50oz or 28oz balance

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Old 10-11-2007, 06:28 PM
  #1  
hillbilly pony
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Default 50oz or 28oz balance

how do you determine which harmonic balancer and flex plate to use? also i know that they should match but what do you do if you swap a t-5. is there weighted fly wheels the same as flex plates
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Old 10-11-2007, 06:37 PM
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Joel5.0
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Default RE: 50oz or 28oz balance

It will depend on the crankshaft used...... yes, flywheels and flex plates have a balance factor.....if you change to a T5 setup, and your auto had a 50 oz. balanced flex plate, you need a flywheel balanced for a 50 oz rotating assy.
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Old 10-11-2007, 06:40 PM
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Default RE: 50oz or 28oz balance

ORIGINAL: Joel5.0

It will depend on the crankshaft used...... yes, flywheels and flex plates have a balance factor.....if you change to a T5 setup, and your auto had a 50 oz. balanced flex plate, you need a flywheel balanced for a 50 oz rotating assy.
all 5.0's came balanced to 50oz correct? obvious aftermarket stuff is different but if the motor is original they should be 50oz
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Old 10-11-2007, 06:46 PM
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hillbilly pony
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Default RE: 50oz or 28oz balance

I thought the balancing had to do with the mass of the crankshaft. My machine guy showed me some that were way beefy and some that were much more dainty.
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Old 10-11-2007, 06:53 PM
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Joel5.0
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Default RE: 50oz or 28oz balance

ORIGINAL: hillbilly pony

I thought the balancing had to do with the mass of the crankshaft. My machine guy showed me some that were way beefy and some that were much more dainty.
Again.......
It will depend on the crankshaft used......
If you only swapped transmissions, the balance factors stays the same......
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Old 10-11-2007, 07:00 PM
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hillbilly pony
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Default RE: 50oz or 28oz balance

this build is from ground up. started with a disassembled block. no balancer or flex.
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Old 10-11-2007, 07:13 PM
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Default RE: 50oz or 28oz balance

ORIGINAL: hillbilly pony

this build is from ground up. started with a disassembled block. no balancer or flex.
And the rotating assembly used is?....... the original?..... stroker kit?.....
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Old 10-12-2007, 04:58 AM
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hillbilly pony
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Default RE: 50oz or 28oz balance

Yeah guess i should have specified... its a stock rotating assembly.
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Old 10-12-2007, 05:54 AM
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86GT 93LX
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Default RE: 50oz or 28oz balance

ok foxs came with a 50oz and before 79 was 28oz, not sure how far back
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Old 10-12-2007, 07:12 AM
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Default RE: 50oz or 28oz balance

ORIGINAL: 86GT 93LX

ok foxs came with a 50oz and before 79 was 28oz, not sure how far back
Wrong. It was around 84 or 85 when 302s went to 50 oz.
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